[Computer-go] Definition of single-point eye

Peter Drake drake at lclark.edu
Fri Oct 24 12:51:37 PDT 2014

I think I'll be doing exactly this: it's alive if it can never be captured;
[some example] is alive because it has two eyes.

(In my flyer sequence, I will cover false eyes and seki, but not bent four
or thousand-year Ko.)

On Fri, Oct 24, 2014 at 9:23 AM, Dave Dyer <ddyer at real-me.net> wrote:

> I agree with the idea that focusing on life, rather than eyes, is
> the most intuitive.  Then you can explain everything with a few
> simple statements.
> 1) a group is captured if there are not empty spaces adjavcent to it.
> 2) a group is alive if no sequence of legal moves can capture it.
> then you should simple examples of groups that are alive.  As a side
> comment, you might mention that there are lots of unusual and tricky
> cases, where the "rules" clause gets complicated - Starting with false
> eyes, and sekis, bent four in the corner, and thousand year Ko.
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Peter Drake
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